The causal link between gibberellins and stem elongation is evidenced by experiments showing that dwarf plants, unable to produce gibberellins, grow taller when treated with them.
The link between gibberellins and stem elongation is directly causal, as demonstrated by experiments where dwarf varieties, which lack gibberellins, show increased height when gibberellins are applied.
| Front | Describe the evidence supporting a link between gibberellins and stem elongation and describe the evidence that showed that this link is directly causal. |
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| Back | Gibberellins and stem elongation evidence:
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